AU2003209039A1 - Methods for increasing production from a wellbore - Google Patents

Methods for increasing production from a wellbore

Info

Publication number
AU2003209039A1
AU2003209039A1 AU2003209039A AU2003209039A AU2003209039A1 AU 2003209039 A1 AU2003209039 A1 AU 2003209039A1 AU 2003209039 A AU2003209039 A AU 2003209039A AU 2003209039 A AU2003209039 A AU 2003209039A AU 2003209039 A1 AU2003209039 A1 AU 2003209039A1
Authority
AU
Australia
Prior art keywords
wellbore
under
assembly
reamer
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2003209039A
Inventor
Giancarlo T. Pia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Lamb Inc
Original Assignee
Weatherford Lamb Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of AU2003209039A1 publication Critical patent/AU2003209039A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Luminescent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Drilling And Boring (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Method for recovering productivity of an existing well. First, an assembly is inserted into a wellbore, the assembly includes a tubular member (135) for transporting drilling fluid downhole and an under-reamer (125) disposed at the end of the tubular member. Next, the assembly is positioned near a zone of interest and drilling fluid (140) is pumped down the tubular member (135). The drilling fluid (140) is used to create an underbalanced condition where a hydrostatic pressure in the annulus (175) is below a zone of interest pressure. The under-reamer (125) is activated to enlarge the wellbore diameter and remove a layer of skin for a predetermined length. During the under-reaming operation, the hydrostatic pressure is maintained below the zone of interest pressure, thereby allowing wellbore fluid (145) to migrate up the annulus (175) and out of the wellbore. Upon completion, the under-reamer (125) is deactivated and the assembly is removed from the wellbore.
AU2003209039A 2002-04-22 2003-02-06 Methods for increasing production from a wellbore Abandoned AU2003209039A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/127,325 2002-04-22
US10/127,325 US6810960B2 (en) 2002-04-22 2002-04-22 Methods for increasing production from a wellbore
PCT/US2003/003660 WO2003089756A1 (en) 2002-04-22 2003-02-06 Methods for increasing production from a wellbore

Publications (1)

Publication Number Publication Date
AU2003209039A1 true AU2003209039A1 (en) 2003-11-03

Family

ID=29215236

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003209039A Abandoned AU2003209039A1 (en) 2002-04-22 2003-02-06 Methods for increasing production from a wellbore

Country Status (8)

Country Link
US (2) US6810960B2 (en)
EP (2) EP1497530B1 (en)
AT (1) ATE438785T1 (en)
AU (1) AU2003209039A1 (en)
CA (1) CA2481847C (en)
DE (1) DE60328672D1 (en)
NO (1) NO335591B1 (en)
WO (1) WO2003089756A1 (en)

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US9109269B2 (en) 2011-08-30 2015-08-18 Baker Hughes Incorporated Magnesium alloy powder metal compact
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9090956B2 (en) 2011-08-30 2015-07-28 Baker Hughes Incorporated Aluminum alloy powder metal compact
US9643144B2 (en) 2011-09-02 2017-05-09 Baker Hughes Incorporated Method to generate and disperse nanostructures in a composite material
US9133695B2 (en) 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
US9347119B2 (en) 2011-09-03 2016-05-24 Baker Hughes Incorporated Degradable high shock impedance material
US9187990B2 (en) 2011-09-03 2015-11-17 Baker Hughes Incorporated Method of using a degradable shaped charge and perforating gun system
US9284812B2 (en) 2011-11-21 2016-03-15 Baker Hughes Incorporated System for increasing swelling efficiency
US9010416B2 (en) 2012-01-25 2015-04-21 Baker Hughes Incorporated Tubular anchoring system and a seat for use in the same
US9068428B2 (en) 2012-02-13 2015-06-30 Baker Hughes Incorporated Selectively corrodible downhole article and method of use
US9605508B2 (en) 2012-05-08 2017-03-28 Baker Hughes Incorporated Disintegrable and conformable metallic seal, and method of making the same
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US11167343B2 (en) 2014-02-21 2021-11-09 Terves, Llc Galvanically-active in situ formed particles for controlled rate dissolving tools
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Also Published As

Publication number Publication date
EP2101035A3 (en) 2016-03-09
CA2481847A1 (en) 2003-10-30
CA2481847C (en) 2007-11-13
ATE438785T1 (en) 2009-08-15
DE60328672D1 (en) 2009-09-17
EP2101035A2 (en) 2009-09-16
US7320365B2 (en) 2008-01-22
NO335591B1 (en) 2015-01-05
EP1497530A1 (en) 2005-01-19
US6810960B2 (en) 2004-11-02
US20030196817A1 (en) 2003-10-23
EP1497530B1 (en) 2009-08-05
US20050092498A1 (en) 2005-05-05
NO20044569L (en) 2004-11-19
WO2003089756A1 (en) 2003-10-30

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase